Home / 91,087.30-136,598.07-38,500.84

Finding the Fourth Proportional to 91,087.30, 136,598.07 and 38,500.84

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Solution

The fourth proportional to 91,087.30, 136,598.07 and 38,500.84 is: 57,737.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,087.30 : 136,598.07 = 38,500.84 : x
  2. Step 2: Convert to fraction form
    91,087.30/136,598.07 = 38,500.84/x
  3. Step 3: Cross multiply
    91,087.30x = 136,598.07 × 38,500.84
  4. Step 4: Simplify right side
    91,087.30x = 5,259,140,437.38
  5. Step 5: Solve for x
    x = 5,259,140,437.38/91,087.30
  6. Step 6: Final answer
    x = 57,737.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.